Talaq- Khula
Question :

A girl was divorced with the divorce of khula through a representative of the husband, and it was made a condition that the girl should surrender half of her dower. The divorce was pronounced and certificate issued, and all other monetary transactions were cleared, but the girl still has not given half of the dower. After observation of the waiting period, she then married another man. Please advise whether the divorce is valid, considering she has not paid the agreed half of the dower, and if it is void what should be done regarding her second marriage?

Answer :

The divorce is valid. She owes him the agreed amount. He is allowed to demand it from her.

The Waiting Period of Khula
Question :

What is the iddah period for khula divorce?

Answer :

The waiting period is three durations of purity between the menstruation periods, the first of which is when the divorce takes place. The waiting period ends when she begins her third menstrual period after the divorce. It is better that she waits until she finishes the third menstrual period before remarrying.

The Khula Divorce
Question :

Is the khula divorce revocable?

Answer :

No, the khula divorce is irrevocable, so they cannot return to each other in marriage unless they marry each other with a new marriage contract. It is considered as one divorce.

Situations of Khula Divorce
Question :

In what situations can khula divorce take place and how?

Answer :

The khula divorce is not valid unless the woman hates her tie of marriage with her husband in such a way that her hatred leads her to not fulfilling her conjugal duties. Simply not liking him without reaching such a level of resentment does not suffice for bringing about the divorce by khula.
When all conditions are met, the woman can start the divorce formula by saying "khālaʾtuka ʿalā..." (I form a khula divorce for the amount of...), and she states the amount of money that she is willing to give him. The husband says afterwards with his intention of accepting the khulaʾ divorce, "Radhītu bi-dhālik" (I accept that).
If she does not hate him to the level of refusing his marital rights, the khula divorce cannot be established, and the normal revocable divorce can take place then, which does not become irrevocable unless the waiting period is completed.

Witnesses
Question :

Does the khula and mubarat divorce require witnesses?

Answer :

All types of divorce, including khula and mubarat, are not valid unless there are qualified witnesses present, and the other conditions must also be fulfilled, such as the woman not being in her menstrual period and not having had sexual intercourse since the last menstrual period.